I tried to do chi square test for the following observed frequencies
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A B
A 8 4
B 12 10
R gave the following output:
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Pearson's Chi-squared test with Yates' continuity correction
data: M
X-squared = 0.10349, df = 1, p-value = 0.7477
Warning message:
In chisq.test(M) : Chi-squared approximation may be incorrect
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Whether this result can be relied or we have to use Fishers exact test ?
Jose
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